235 lines
6.4 KiB
JavaScript
235 lines
6.4 KiB
JavaScript
var graph, canvas, layouter, renderer, divwait, nodes, announcements, nodesIndex, palette, localInfo;
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document.addEventListener( "DOMContentLoaded", init, false);
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/**
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* Returns an index of nodes by name
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*/
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function createNodeIndex(nodes) {
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var inode, index = {};
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for (inode in nodes)
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index[nodes[inode].name] = nodes[inode];
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return index;
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}
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/**
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* Updates to have announcements in nodes list
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*/
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function processNodeAnnouncements(nodes, announcements) {
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var iannouncement, remoteNode, announcement;
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nodesIndex = createNodeIndex(nodes);
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for(iannouncement in announcements) {
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announcement = announcements[iannouncement];
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if (announcement.remoteName == '---' ) continue;
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if (!( announcement.remoteName in nodesIndex )) {
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newNode = {
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name: announcement.remoteName,
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links: []
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};
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nodes.push(newNode);
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nodesIndex[newNode.name] = newNode;
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};
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remoteNode = nodesIndex[announcement.remoteName];
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if (!( 'announcements' in remoteNode )) remoteNode.announcements = [];
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remoteNode.announcements.push(announcement);
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};
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}
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function init() {
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palette = generatePalette(200);
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graph = new Graph();
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canvas = document.getElementById('canvas');
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layouter = new Graph.Layout.Spring(graph);
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renderer = new Graph.Renderer.Raphael(canvas.id, graph, canvas.offsetWidth, canvas.offsetHeight);
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divwait = document.getElementById("wait");
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XHR.get('/cgi-bin/luci/admin/network/BMX6/topology', null, function(nodesRequest, nodesData) {
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nodes = nodesData;
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XHR.get('/cgi-bin/bmx6-info?$myself&', null, function(myselfRequest, myselfData) {
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if (myselfData)
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localAnnouncements = [
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{remoteName: myselfData.myself.hostname, advNet: myselfData.myself.net4},
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{remoteName: myselfData.myself.hostname, advNet: myselfData.myself.net6}
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];
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XHR.get('/cgi-bin/bmx6-info?$tunnels=&', null, function(tunnelsRequest, tunnelsData) {
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var iAnnouncement;
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announcements = tunnelsData.tunnels;
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for(iAnnouncement in localAnnouncements) {
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announcements.push(localAnnouncements[iAnnouncement])
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};
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processNodeAnnouncements(nodes, announcements);
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divwait.parentNode.removeChild(divwait);
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draw(nodes);
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});
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});
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});
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}
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function hashCode(str) {
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var hash = 0;
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if (str.length == 0) return hash;
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for (i = 0; i < str.length; i++) {
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char = str.charCodeAt(i);
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hash = ((hash<<5)-hash)+char;
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hash = hash & hash; // Convert to 32bit integer
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}
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return hash;
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}
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function generatePalette(size) {
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var i, arr = [];
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Raphael.getColor(); // just to remove the grey one
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for(i = 0; i < size; i++) {
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arr.push(Raphael.getColor())
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}
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return arr;
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}
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function getFillFromHash(hash) {
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return palette[Math.abs(hash % palette.length)];
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}
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function hashAnnouncementsNames(announcementsNames) {
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return hashCode(announcementsNames.sort().join('-'));
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}
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function getNodeAnnouncements(networkNode) {
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return networkNode.announcements;
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}
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function nodeRenderer(raphael, node) {
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var nodeFill, renderedNode, options;
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options = {
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'fill': 'announcements' in node.networkNode ? getFillFromHash(
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hashAnnouncementsNames(
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getNodeAnnouncements(node.networkNode).map(function(ann) {return ann.advNet;})
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)
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) : '#bfbfbf',
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'stroke-width': 1,
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};
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renderedNode = raphael.set();
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renderedNode.push(raphael.ellipse(node.point[0], node.point[1], 30, 20).attr({"fill": options['fill'], "stroke-width": options['stroke-width']}));
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renderedNode.push(raphael.text(node.point[0], node.point[1] + 30, node.networkNode.name).attr({}));
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renderedNode.items.forEach(function(el) {
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var announcements, tooltip = raphael.set();
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tooltip.push(raphael.rect(-60, -60, 120, 60).attr({"fill": "#fec", "stroke-width": 1, r : "9px"}));
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announcements = getNodeAnnouncements(node.networkNode);
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if (announcements) {
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announcements = announcements.map(function(ann) {return ann.advNet});
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tooltip.push(raphael.text(0, -40, 'announcements\n' + announcements.join('\n')).attr({}));
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};
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el.tooltip(tooltip);
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});
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return renderedNode;
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}
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function genericNodeRenderer(raphael, node) {
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var renderedNode;
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renderedNode = raphael.set();
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renderedNode.push(raphael.ellipse(node.point[0], node.point[1], 30, 20).attr({"fill": '#bfbfbf', "stroke-width": 1}));
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renderedNode.push(raphael.text(node.point[0], node.point[1] + 30, node.networkNode.name).attr({}));
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return renderedNode;
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}
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function redraw() {
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layouter.layout();
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renderer.draw();
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}
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function interpolateColor(minColor,maxColor,maxDepth,depth){
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function d2h(d) {return d.toString(16);}
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function h2d(h) {return parseInt(h,16);}
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if(depth == 0){
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return minColor;
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}
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if(depth == maxDepth){
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return maxColor;
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}
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var color = "#";
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for(var i=1; i <= 6; i+=2){
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var minVal = new Number(h2d(minColor.substr(i,2)));
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var maxVal = new Number(h2d(maxColor.substr(i,2)));
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var nVal = minVal + (maxVal-minVal) * (depth/maxDepth);
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var val = d2h(Math.floor(nVal));
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while(val.length < 2){
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val = "0"+val;
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}
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color += val;
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}
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return color;
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}
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function draw(nodes) {
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var node, neighbourNode, seenKey, rxRate, txRate, seen, i, j, currentName, linkQuality;
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seen = { };
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for (i = 0; i < (nodes.length); i++) {
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node = nodes[i];
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graph.addNode(node.name, {
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networkNode: node,
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render: nodeRenderer
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});
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};
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for (i = 0; i < (nodes.length); i++) {
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node = nodes[i];
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if (! node.name) continue;
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currentName = node.name;
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for (j = 0; j < (node.links.length); j++) {
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neighbourNode = node.links[j];
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graph.addNode(neighbourNode.name, {render: genericNodeRenderer, networkNode: neighbourNode});
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seenKey = (node.name < neighbourNode.name) ? node.name + '|' + neighbourNode.name : neighbourNode.name + '|' + node.name;
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rxRate = neighbourNode.rxRate;
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txRate = neighbourNode.txRate;
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if (!seen[seenKey] && rxRate > 0 && txRate > 0) {
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linkQuality = ( rxRate + txRate ) / 2;
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graph.addEdge(node.name, neighbourNode.name, {
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'label': rxRate + '/' + txRate,
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'directed': false,
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'stroke': interpolateColor('FF0000','00FF00', 5, 5 * ( linkQuality - 1 )/100),
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'fill': interpolateColor('FF0000','00FF00', 5, 5 * ( linkQuality - 1 )/100),
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'label-style': { 'font-size': 8 }
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});
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seen[seenKey] = true;
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}
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}
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}
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redraw();
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}
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